YC450HLYC450HL – Factory Hand Sealer A sealer like this is intended for making plastic bags, from a roll of centre-folded film, in a production environment. It contains a power transformer which is capable of the repetitive demands of this type of usage. This sealer is fitted with a round element, which melts though both layers of film, welding them together in the process. One or more items can be inserted into the bag before it is formed, and the bag can be formed to closely fit the item(s) inside. After this, the bag can be sealed closed, and, if desired, multiple items bagged, can be separated into smaller bags using the sealer. In this way, wide plastic can be used for small items, with little waste of material. If you wish to make bags from a roll of tubing, one of our sealers which have sharp cutting blades would be recommended. This sealer is not optimally designed for tubing.